论文部分内容阅读
(一) 初等方法求极值,技巧甚多。下列各法都是常见的。 (1)配方,利用二次函数图象解; (2)利用二次方程判别式解; (3)定和求积的极大值,定积求和的极小值;
(a) The primary method requires extreme skills and skill. The following methods are common. (1) Recipe, using quadratic function image solution; (2) Using quadratic equation discriminant solution; (3) Determining and product maxima, minimizing the sum of product sums;